Use the MusicMedic.com Grey or Brown Tripoli for fast cut buffing to remove scratches. You can also remove leftover lacquer with these compounds. Red Rouge is widely used in the band instrument repair industry for color buffing and is available in two sizes. The MusicMedic.com Blue gives an excellent final polish on silver and brass and is almost as good as the Blue Hubble. Blue Hubble is the best choice for final polishing. You can easily bring out the bright luster of your instrument by finishing it off with this compound. This is the only compound we have found that produces a consistent mirror finish. Always use Blue Hubble on a non-contaminated buffing wheel.